on my grandfathers farm it was called “incineration” ..generally in old 55 gallon oil drum...or a 5 ft deep fire pit
We had a pit, 12’ x 12’ x 12’ with a narrow, sloping ramp to the bottom for make up air. logs, limbs, old tires, paint, broken lawn chairs, added diesel and the heat kept you fifty feet back. Oxidation! Anything will burn if you get it hot enough!